Add optical character recognition (OCR) to your PDF files to make scanned documents searchable and selectable with advanced text extraction.
Click or Drag & Drop PDF Files
Select PDF files to add OCR text recognition
Max file size: 200MBSupported: .pdf files
How to Add OCR to PDF Online for Free
1.
Upload your PDF files – Click the "Choose File" button or drag and drop your PDF files into the FILPDF OCR tool.
Upload PDF files for OCR text recognition
2.
Configure OCR settings – Choose language, processing type, render method, and additional options like deskewing and cleaning.
Configure OCR processing options and language settings
3.
Process with OCR – Click the "Process with OCR" button to start adding text recognition to your PDF files.
Process PDF files with optical character recognition
4.
Download your searchable PDFs – Once processing is complete, download your PDF files with searchable and selectable text.
Download PDF files with OCR text recognition
Add OCR Text Recognition to PDF Files Online
Need to unlock the text inside a scanned document or image-based PDF? With the free OCR PDF online tool from FILPDF, you can instantly convert scanned PDFs to searchable and editable text right from your browser.
Upload your scanned PDF to FILPDF, select the document language, and let the system run automatic Optical Character Recognition (OCR). The tool detects characters, preserves the original layout, and produces a searchable PDF or text file with high accuracy.
Because everything happens online, you can use this free OCR PDF tool on any device without installing software. Whether you need to make scanned PDFs searchable or copy key information, FILPDF provides a secure and reliable solution—completely free to use.
FAQ – OCR PDF Text Recognition
What is OCR PDF and how does it work?
OCR (Optical Character Recognition) analyzes images or scanned text in PDFs and converts them into a searchable text layer without altering the visual appearance.
How can I convert a scanned PDF to searchable text online?
Simply upload your scanned file to FILPDF’s free OCR PDF tool, choose a language, and download the searchable PDF or extracted text in seconds.
Is the FILPDF OCR PDF tool completely free to use?
Yes. FILPDF offers a free OCR PDF online service with no hidden charges, watermarks, or required software installation.
Can I make scanned PDFs editable on Mac, Windows, or mobile?
Absolutely. FILPDF runs entirely in the browser, so you can perform OCR on any device, including Mac, Windows, Linux, iPhone, or Android.
Does OCR PDF keep the original layout and formatting?
Yes. The OCR process preserves page structure, fonts, and images while adding a searchable text layer beneath the visible content.
How accurate is text recognition for low-quality scans?
Accuracy depends on image quality, resolution, and language, but FILPDF uses advanced algorithms to deliver highly accurate results even on challenging scans.
Can the OCR PDF tool recognize multiple languages in one file?
Yes. FILPDF supports multiple languages and can detect and convert mixed-language text within the same PDF.
Is my data safe when uploading PDFs to FILPDF?
Your privacy is protected. All uploads are encrypted and automatically deleted from FILPDF servers after processing.
Are there any size or page limits for free OCR PDF conversions?
FILPDF supports large PDFs, but extremely big files may require splitting into smaller parts for faster processing.
Can I extract plain text instead of a searchable PDF?
Yes. FILPDF lets you download either a fully searchable PDF or a plain text file depending on your needs.
What’s the difference between OCR PDF and regular PDF conversion?
Regular PDF conversion changes file formats, while OCR PDF specifically recognizes and converts image-based text into searchable or editable content.
